Electrical connector having a shield case with impedance adjuster

Abstract

The invention provides a connector including a body having an insulating property; a terminal group provided in the body; and a shield case having electrical conductivity. The terminal group includes a first terminal, and a second terminal, being provided adjacent to the first terminal and having higher impedance than the first terminal. The shield case includes an outer shell, configured to surround an peripheral surface of the body, and an impedance adjuster, provided at the outer shell and located adjacent to at least a portion of the second terminal and on an opposite side of the second terminal from the first terminal.

1. A connector comprising:
 a body having an insulating property; 
 a terminal group provided in the body; and 
 a shield case having electrical conductivity, wherein 
 the terminal group includes:
 a first terminal, and 
 a second terminal, being provided adjacent to the first terminal and having higher impedance than the first terminal, and 
 
 the shield case includes: 
 an outer shell, configured to surround an peripheral surface of the body, and 
 an impedance adjuster, provided at the outer shell and located adjacent to at least a portion of the second terminal and on an opposite side of the second terminal from the first terminal. 
 
     
     
       2. The connector according to  claim 1 , wherein
 the outer shell includes first and second outer shells, 
 the body includes a main body, the main body including a front portion and a rear portion, 
 the second outer shell includes a tuboid containing portion adapted to contain the front portion of the main body, 
 the first outer shell includes a base adapted to cover at least a portion of the rear portion of the main body, 
 an opening is provided in the base or the containing portion, 
 a lid for closing the opening is provided in the containing portion or the base, and 
 the impedance adjuster stands on an edge of the opening. 
 
     
     
       3. The connector according to  claim 1 , wherein
 the outer shell includes first and second outer shells, 
 the body includes a main body, the main body including a front portion and a rear portion, 
 the second outer shell includes a tuboid containing portion adapted to contain a front portion of the main body, 
 the first outer shell includes a base adapted to cover at least a portion of a rear portion of the main body, 
 an opening is provided in the base or the containing portion, 
 a lid for closing the opening is provided in the containing portion or the base, and 
 the impedance adjuster stands on the lid and is received in the opening. 
 
     
     
       4. The connector according to  claim 2 , wherein
 the base abuts a lower surface of the rear portion of the main body, 
 the containing portion includes:
 a first plate abutting upper surfaces of the front portion and the rear portion of the main body, 
 a second plate shorter than the first plate, the second plate abutting a lower surface of the front portion of the main body, and 
 third and fourth plates abutting opposite side surfaces of the front portion of the main body, and 
 
 the second outer shell further includes:
 a pair of covers provided continuously to the first plate or the third and fourth plates, the covers abutting opposite side surfaces of the rear portion. 
 
 
     
     
       5. The connector according to  claim 3 , wherein
 the base abuts a lower surface of the rear portion of the main body, 
 the containing portion includes:
 a first plate abutting upper surfaces of the front portion and the rear portion of the main body, 
 a second plate shorter than the first plate, the second plate abutting a lower surface of the front portion of the main body, and 
 third and fourth plates abutting opposite side surfaces of the front portion of the main body, and the second outer shell further includes: 
 a pair of covers provided continuously to the first plate or the third and fourth plates, the covers abutting opposite side surfaces of the rear portion. 
 
 
     
     
       6. The connector according  claim 4 , wherein
 the first outer shell further includes a pair of locking portions standing on the base, and 
 the locking portions are locked to the covers. 
 
     
     
       7. The connector according  claim 5 , wherein
 the first outer shell further includes a pair of locking portions standing on the base, and 
 the locking portions are locked to the covers. 
 
     
     
       8. The connector according to  claim 2 , wherein
 the terminal group comprises a plurality of terminals including the first terminal and the second terminal, 
 the connector further comprises: 
 a cable including a plurality of signal lines, the signal lines being connected to the terminals, and 
 a shield conductor covering the signal lines, and
 the first and second outer shells are in contact with each other, and at least one of the first and second outer shells further includes a connection portion to be brought into contact with the shield conductor. 
 
 
     
     
       9. The connector according to  claim 2 , wherein
 the body includes a slit on the opposite side of the second terminal from the first terminal, and the slit is adapted to receive the impedance adjuster. 
 
     
     
       10. The connector according to  claim 3 , wherein
 the body includes a slit on the opposite side of the second terminal from the first terminal, and the slit is adapted to receive the impedance adjuster. 
 
     
     
       11. The connector according to  claim 1 , wherein the impedance adjuster is embedded in the body. 
     
     
       12. The connector according to  claim 1 , wherein
 the terminal group has a plurality of terminals arrayed in first and second rows, 
 the second terminal is positioned at an end of the terminals in the first or second row, and 
 the first terminal is positioned in the same row as the second terminal and on an inner side from the second terminal. 
 
     
     
       13. The connector according to  claim 8 , wherein
 the terminals are arrayed in first and second rows, 
 the second terminal is positioned at an end of the terminals in the first or second row, and 
 the first terminal is positioned in the same row as the second terminal and on an inner side from the second terminal. 
 
     
     
       14. The connector according to  claim 12 , wherein
 the terminal group further includes a third terminal positioned in a different row from the first and second terminals and between the first and second terminals in plan position, and 
 the first and second terminals serve as a differential pair. 
 
     
     
       15. The connector according to  claim 13 , wherein
 the terminal group further includes a third terminal positioned in a different row from the first and second terminals and between the first and second terminals in plan position, and 
 the first and second terminals serve as a differential pair.